Spring-wheel.



Nd. 855,095; PATENTED MAY 28, 1907.

J. w. COOPER.

SPRING WHEEL. APPLICATION 111L111) AUG. 27. 1906.

2 SHEETS-SHEET 1.

PATENTED MAY 28, 1907. J. W; COOPER."

; SPRING WHEEL. APPLICATION FILED 411mm. 1906.

2 SHEETS-SHEET 2.

citizen of the United States, residing at Bos- UNITED STATES PATENT oFFroE. JOHN w. COOPER, or BOSTON, mss cnUsET'rsf SPRING-WHEEL.

nassaoes.

Specification of Batters Patent.

mama May 28, 1907.

Application filed August 27,1906. Serial No. ssazsa To allwhom it may concern:

Be itknown that 1, JOHN W. Coorna, a

ton, in the county of Suffolk and State of Massachusetts,- have invented certain new anduseful Improvements in Spring-Wheels, of which the following is a specification.

This invention contemplates certain new and useful improvements in spring wheelsand the primary object of the invention isto provide a wheel of-this character which. will embody characteristics of durability, simplicity of construction and ease with which the'parts may be assembled, lightness, extreme resiliency, while at the same time being devoid of the disadvantageous features that are inherent to resilient wheels em loying pneumatic tires, which,.'while resi ient, are susceptible to punctures and other unfortunate results.

With these and other objects in view, as will more readily appear as the description proceeds, the inventlon consists in certain constructions, arrangements and combinations ofthe parts hereinafter described, .and particularly'pointed out in the appended claims. I

For a full understandin of the invention and the merits thereof an also to acquire a knowledge of the detailsof construction of the means foreff'ecting-th'e result, reference is construction; Fig. 2 is a transversesectional view'of my improved wheel; Fig. 3 is a detail transverse sectlonal view illustrating the two separable members of which the inner rim of the wheel is composed; Fig. 4 is a detail transverse section of one form of shoe em= ployed, said shoes being arranged in series to 5 7 reference characters. Referring to the drawing,'the numeral 1 comprise the outer rim of the wheel; and, Fig. 5 is aj'siinilai view of a modified form of Corresponding and like parts are referred to in the following description and indicated in all the views the drawings by the same designates the hub of my improved wheel iss' ' each other and adapted to receive the spindle which, as shown comprises .two hub members 2 arranged in spaced apart relation to invention,

5 designates the felly which may be com posed of wood in-jthe usual sections, said sections being provided with apertures to receive thetenons 6 at the outer ends of the s okes 4. The tenons 6 are extended as inicated at 6 and they extend entirely through the wooden felly 5 and project beyond the same, and they, also, extend through the inner rim members 7 and into socket pieces or tubular bosses 8 projecting outwardlyfrom and preferably integral with the rim members 7. As shown best in Fig. 3, theseinner rim members are constructed in separable sections adapted to fit together on opposite sides of the wooden felly sections 5 to which they arerigidly secured, and they are angular 1n cross section, as shown, so as to extend along the sides of the sections as well as-overthe upper surface of the latter,

the' inner rim members 7 are, together,

formed with annular protuberances 9 Grits their upper or outer surface at the base of the saidbosses 8. Preferably the rim members 7 are thickened at their corners and extend outwardly from their main sides with a bevel as indicated at 10. a I

A series of helical springs 11 have their inner ends fitted around the protuberances 9 and are therebyke t in place, and the outer ends of said sprin s t snugly within shallow sockets 12- in the ower face of the shoes 13, which, together as a series, constitute the outer rim ofv the wheel. These shoes are, as best shown in Fig. 4, rovided with rim flanges.14, the upper surfaces of which constitute upwardly acingshoulders 15.. The

springs 11 encircle the bOSSBSpS and the ex-- tensions of. the tenons'where closedby'said bosses, as best seen inFig; '2.

constructed accordinito the'principles of my rs' re fera ly "solid or m-cu'shion tire m contra t nctiorg to a-..1ineumatic 4 tire and is designated-16; It-fitswithinrthe side rims of shoesl 3, extending circumferentially around the wheel one'shoe to the other;

5 and the said ."sho e's' "are 1 ovidedi {'cen The rubber or similar-tire of 1 the wheel,

tr ally located studsgorhi Mid-cor responding openings 18 in the the so.- as to assist in preventing the creeping ofthe tire around the tire rim of the wheel. de-

sired, the nibs 17'may bereinforced in their function by means of screws'18which,' pref- 'erably, constitutefextensions .ofthe; said n1bs, such screwsbeing'illustrated in detail in Fig. 5 and "being designedto extend firmly into the body of the tire. Also, if 'desired, this action-of the'scr'ews and nibs vmay be further reinforced or aided by means of side screws 18 extending bodily into thetire and also illustrated in' Fig, 5. ,These screws,

, however, are merelymodific'ations of my in --vent1on and I do notconsider that they are indispensable.

19 designates two annular side plates that ex'tend entirely around the wheel on both sides of theinner and outer tires thereof, said side-plates being referably secured to the inner rim and the elly embraced thereby by' means of the same bolts that secure the said inner rim' to the felly. These side-plates are s also secured together so as to properly fasten wit the parts, byrmeansof bolts 20 connecting them together near'their outer edges, and said. bolts occupy the spaces between the series of helical springs 11 and therefore interfe're in no wise with the proper action of thesprings; The plates 19 a're formed neartheir outer edges with annular inwardly facing shoulders 21 coactin with the outwardl facing shoulders 15 of t e shoes 13. It wil be seen that the arrangement of parts above described and "shown in the accom anying drawings, w1thie'spect to the shouders 15' and the coacting overlying-shoulders 21, provides that the latter shoulders will limit the outward-movement of the respective shoes, but will permit the inward movement of the latter, and thereby producing the properresilient action and preventing an ,un- =1 due outward movement 0 the partsunder tension of the springs 11.- In the preferred pro or-tion of the arts, the tire 16 is formed a substantla ly. semicircular tread or-' tionf16 and two fiat side surfaceslfi w 'ch project beyond. the outer edges oftheplates 19. Hence, in the actual operation of-the wheel, those portions thereof that come into contact with the ground as the wheel turns will be compressed and the tread portion 16 will be partially flattened out, J while the flat-surface 16? will be spread outward over the rounded ends of the side plates 19 and consequently the spa'cebetween the said edges and the side rims of the-shoes 13 will .be'closed and all-water andmoisture .will be effectively excluded. While this is the case,

I have provided drains for the interior of the wheel,- as in case of-any severewear, moisture might gain access to the interior arts. These drains are simply orifices locate in the side platesprefers, 1y near the inner endsthereof or wheresaid side plates extend towardeach s okes being a felly through spokes bein other and under the "beve'ledthickened corners of thezside of the rim members 7; They are designated-'22,

' From'the foregoing d 'scrip'tio'n in connec tion with the accompanying?drawings, it will. be seen that I have provided .a very strong and yet ver'y'light 'constructionof veh-icle ,Whe'el, which possesses the ch'aracter- I I istic of extreme] resiliency, while at the same time it is'durable' andis 'theref'ore'well adapted for vehicles of all description, no matter ,videdon their inner surface with sockets, the

inner rim being formed With-a series of protuberances on its foutersurface, a series of helical springs, the outer ends of whichare received inl'saidsockets, and the inner. ends of which surround the said protuberances, a

tirereceived. in the outer-rim, and means for limiting the outward movement of the said outer rimQ 2. A vehicle. wheehcomprising a hub, a

series of spokes secured to said hub, said rovided with extended tenons,

rim,lan ularin cross section and'embracing said fe y, the said rim being providedwith tubular bosses accommodating the project ing ends of said tenons, an outer rim, a tire in sa d'outer rim, and springs interposedlbe tween said'outer rim and sald inner rim.

3. A vehicle wheel comprising a hub," a

v which said tenons-e'xtendand v 'beyo'nd which they project, a-tubular inner series of spokes connected to said hub and provided with extended tenons at their outer ends, a felly through which said-tenons eX- tend and beyond which they are projected, an inner rim secured tosaid felly and pro 'vided with tubular bosses housing the pro jecting ends of said tenons and also provided i *with annular protuberances on their outer surface, an outer rim constituting a series of shoes provided with sockets in their lower faces, atire received in'said shoes, and helical rings interposed between said shoes and t e inner rim,- the outer-ends of saidsprings' being received insaid sockets and the inner ends of said springs encircling the said protuberances i v I 4 Avehiclewheel, comprising a hub, a

series of'spokes' secured to said hub, said provided with extended tenons, a felly t rough which said tenons extend and beyond whichthey project, a tubular inner rim angular in cross section and embracingsaid' fe'lly, the said rim being provided' with tubular bosses accommodating the projecting ends of said tenons, an outer which produce outwardly facing shoulders,

sashes rim consisting .of a; series of independent shoes provided on their inner faces with sockets and also provided with rim flanges coil springs having their outer'ends fitted in said sockets and their inner ends encircling the tubular bosses of the inner rim and side plates secured to opposite sides oi the said inner rim and secured together betweenthe said springs, the outer ends of said side plates being formed with inwardly facing shoulders adapted to co-act with theoutwardly facing shoulders of the outer rim, and a tire held in said outer rim.

5... -A vehicle wheel' comprising a hub,- a

series of spokes secured tosaid hub, said spokes being provided with extended tenons, a felly throu which said tenons extend and beyond Whic they project, a tubular inner rim vconstructed in mating side sections. adapted to embrace said felly, the said sections being provided with tubular bosses; ada ted to fit around the projecting ends of sai tenons, an outer rim, a tire in said outer rim, and springs interposed between said outer rim and said inner-rim.

In testimony whereof I affix my signature in presence of two witnesses.

. JOHN W. CQOPJER- [L s.] Witnesses:

' GERTRUDE K. DoNoA-is, JONATHAN 'T; HOWARD, 

